Cross-Sectional Performance of Hollow Square Prisms with Rounded Edges

Symmetry

Hiroyuki Shima¹  Nao Furukawa²  Yuhei Kameyama³  Motohiro Sato⁴  Akio Inoue⁵ 

[1] Department of Environmental Sciences, University of Yamanashi, Kofu, Yamanashi 400-8510, Japan;Department of Socio-Environmental Engineering, School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan;Division of Engineering and Policy for Sustainable Environment, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan;Division of Mechanical and Aerospace Engineering, Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan;Faculty of Agriculture, Kindai University, Nara 631-8505, Japan;

关键词: square bamboo;    structural mechanics;    buckling;    bending;    hollow columns;    biomimetics;   

DOI  :  10.3390/sym12060996

来源: DOAJ

【 摘 要 】

Hollow-section columns are one of the mechanically superior structures with high buckling resistance and high bending stiffness. The mechanical properties of the column are strongly influenced by the cross-sectional shape. Therefore, when evaluating the stability of a column against external forces, it is necessary to reproduce the cross-sectional shape accurately. In this study, we propose a mathematical method to describe a polygonal section with rounded edges and vertices. This mathematical model would be quite useful for analyzing the mechanical properties of plants and designing plant-mimicking functional structures, since the cross-sections of the actual plant culms and stems often show rounded polygons.

【 授权许可】

Unknown